The Christina Lake Regional Project is centrally located among the main commercial “it situ” oil sands developments of the Canadian Athabasca oil sands region. The reservoir has been estimated to contain over 6 billion barrels of bitumen in place and approximately 2.8 billion barrels of recoverable resources.

The Problem

The hot lime softeners (HLS) effluent has about 30 mg/l of hardness, which needs to be removed from the produced water to be suitable for boiler feed water. Aquatech International Corporation was brought on to provide the Total Solution for filtration and softening consisting of an After Filter Package with the use of the overall process for the Strong Acid Cation (SAC) and Weak Acid Cation (WAC) exchangers and polishers.

The Solution

Aquatech‘s After Filter Package consists of five parallel feed Filters designed to treat up to 709 m3/hr (max.) of treated water from the HLS to make up filtered water to the downstream SAC / WAC package.

The After Filters will lower the turbidity to less than 2 NTU considering an average feed water of 20 NTU.

Three trains of 33% SAC/WAC exchangers / polishers were provided to reduce the produced water hardness less than 5 mg/l as required.

The systems can be initiated manually by the operator, or automatically based on the cumulative service time or cumulative service flow through the polisher.

Related articles

Overview
Hussain Sagar Lake in India faced an inflow of untreated waste and pollution causing decreasing DO levels and foul odors in the nearby community. An even more critical threat was eutrophication, or an excessive number of nutrients in the body of water, choking out the natural aquatic life.
Given the lake is stagnate, circulation and the distribution of efficient aeration was needed to alleviate these issues.
Challenge
Hussain Sagar Lake is located in a recreational area with many visitors. The lake...

A recent study published by the US-American National Academy of Sciences revealed an increasing salt amount in form of chloride in rural and urban freshwater lakes around the American continent. The scientists believe, that mainly road salt distributed on icy roadways is to blame.
Increasing salt levels threaten eco systems
Road de-icing salt is blamed for rising salt levels in freshwater lakes. This was uncovered by a study of the National Academy of Sciences carried out for the last one and a half year. In...

In May 2014 and May 2015, AGI conducted a hydrogeology workshop focused on training students how to use a resistivity meter for groundwater exploration at Lake Travis near Austin, Texas.
Why groundwater exploration?
This workshop’s purpose was important: As water—especially groundwater—becomes more and more scarce (and thus, valuable) knowing exactly where and how to find it will become more crucial. By training students how to use our resistivity meter for groundwater exploration, we’re...

Degraded by decades of pollution, the North American Great Lakes are finding new life through cleanup efforts now threatened by proposed federal budget cuts.
The St. Louis River, which flows into Lake Superior — the greatest of North America’s Great Lakes — has a long and turbulent history. Once a portal for Native American trade and a garden for wild rice, these waters that drain Minnesota’s north woods were polluted in the 19th and 20th centuries with waste from lumber, paper and...